Evaluate
19a+3c
Differentiate w.r.t. a
19
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13a+3b-c-b+c-a-b-c+7a-b+4c
Combine 8a and 5a to get 13a.
13a+2b-c+c-a-b-c+7a-b+4c
Combine 3b and -b to get 2b.
13a+2b-a-b-c+7a-b+4c
Combine -c and c to get 0.
13a+b-a-c+7a-b+4c
Combine 2b and -b to get b.
20a+b-a-c-b+4c
Combine 13a and 7a to get 20a.
20a-a-c+4c
Combine b and -b to get 0.
20a-a+3c
Combine -c and 4c to get 3c.
19a+3c
Combine 20a and -a to get 19a.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}